Idemitsu Kosan Company, Limited

Mitsui Chemicals, Inc.

Takahiko Ochi

Nobuhiro Yabunouchi

Takayasu Sado

Kiyoshi Ikeda

Yoshiyuki Totani

Fumio Okuda

Michiru Sekiguchi

Bunji Sawano

Yoshimitsu Tanabe

Disclosed is a long-life organic EL device having high luminous efficiency even after storage at high temperatures. Also disclosed is an aromatic amine derivative which enables to realize such an organic EL device. The aromatic amine derivative is represented by the following general formula (1). (In the formula (1), Ar1 is represented by the general formula (2) below, and Ar2 is represented by the general formula (3) below.) 

Aromatic amine derivative and organic electroluminescent device using the same

A pyrromethene-boron complex compound represented by the following formula (1); wherein Zand Zare independently a hydrogen atom, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted aryloxy group, at least one of Zand Zis an alkoxy group substituted with a fluorine atom or an aryloxy group substituted with a fluorine atom or a fluoroalkyl group, and Zand Zmay form a ring.

Pyrromethene-boron complex compounds and organic electroluminescent elements using same

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Sodegaura, Japan

Takahiko Ochi